AquaStar 125BL Руководство по установке и эксплуатации - Страница 5

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e. Hand thread the pressure tap fitting into

the heater's burner manifold. Use a small

amount of an appropriate thread sealant on the

male end of the fitting. Over tightening of

the fitting will break it.

f. Guide the end of the tube into the com-

pression fitting. While using one wrench to

hold back the pressure tap fitting, gently snug-

up the compression nut with a second wrench.

Bend the second piece of aluminum tubing

(from step 2) so that it will reach from the gas

pressure switch through the underneath of the

heater to an area below the burners.

Connect one end of the tube to the fitting

marked "warning" on the gas pressure switch.

The other end of the tubing should now

extend to burner area close to pilot,

position it just below the stainless steel

burners. This tube should not discharge into

the flame nor should it extend above the upper

edge of the burners. This tube vents gas to the

combustion chamber for ignition in case of a

diaphragm failure in the gas pressure switch.

NOTE: The gas pressure switch has a built in

pressure tap marked "gauge port". Use this

tap instead of the heater's manifold tap when

checking manifold pressure. (See Figure A)

Linear Spillage Sensing Switch

This switch provides a means for safety shut down of the

water heater in the event of flue blockage or power venter

failure. If hot flue gasses spill from the draft hood diverter,

the draft spillage sensing switch will open the pilot safety

circuit and shut off all gas to the water heater. The switch

is normally closed and opens at temperatures greater

than 185º F. It has a manual reset button.

INSTRUCTIONS

The entire length of the copper capillary

sensing tube is heat sensitive. The idea is to

suspend the tube within close proximity of the

heater's draft hood diverter. Note: do not

cut the copper capillary sensing tube.

The linear spill switch should mount in a

location where the tube can extend across the

top of the draft diverters while allowing the

switch cables to reach the ECO.

(See Figure C, page 5)

Route the cables to the ECO switch inside the

water heater keeping the cables out of contact

with hot surfaces.

SAFETY CIRCUIT

The linear spill switch, when wired in series with the

Thermocouple or Pilot Flame Sensor and ECO(s) of the

water heater, form the Safety Circuit.